Originally Posted by
tmiw
How does eliminating an option reduce complaints?
Less to support.
Also, I feel like email is easier to hack than SMS. At least with the latter you theoretically need a valid SIM linked to the phone number on the account (even if it's simple for attackers to social engineer their way to getting your number onto their phone).
That's the whole problem, it's very easy for an attacker to trick an entry-level frontline employee that they are you, known as SIM hijacking, and now they get your texts and phone calls. After that, they go after your other accounts, with confirmation texts going to them, not you.
SIM hijacking and the flaws of traditional two-factor authentication
How hackers are hijacking your cellphone account
T-Mobile Is Sending a Mass Text Warning of ‘Industry-Wide’ Phone Hijacking Scam